Oxtail and Sweet Potato Soup - Sarson's

Ingredients

• 1 ½ tbsp Sarson’s Browning Sauce
• 550g oxtail, cut into 2.5 inch pieces and trimmed of fat
• 2 tbsp rapeseed oil
• 1 tbsp plain flour
• 1 litre of good-quality beef stock
• 1tbsp tomato paste
• ½ tbsp soy sauce
• ½ onion, roughly chopped
• ½ celery stalk, roughly chopped
• 1 carrot, roughly chopped
• 2 cloves of garlic, roughly chopped
• 2 large sprigs of thyme
• 1 tbsp finely chopped chives
• ½ thumb-sized piece of ginger, peeled and roughly chopped
• 2 bay leaves
• 1 whole, un-pierced and un-bruised scotch bonnet
• ¼ to ½ tsp of scotch-bonnet hot sauce (optional)
• 2 small sweet potatoes, peeled and roughly chopped
• Sea salt and freshly ground black pepper